CN1433336A - Cleaning device for waste water - Google Patents
Cleaning device for waste water Download PDFInfo
- Publication number
- CN1433336A CN1433336A CN00818780A CN00818780A CN1433336A CN 1433336 A CN1433336 A CN 1433336A CN 00818780 A CN00818780 A CN 00818780A CN 00818780 A CN00818780 A CN 00818780A CN 1433336 A CN1433336 A CN 1433336A
- Authority
- CN
- China
- Prior art keywords
- filter bag
- waste water
- blowning installation
- cleaning
- cleaning device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 51
- 239000002351 wastewater Substances 0.000 title claims abstract description 32
- 239000000706 filtrate Substances 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 238000001125 extrusion Methods 0.000 claims description 2
- 239000010865 sewage Substances 0.000 claims description 2
- 230000008602 contraction Effects 0.000 claims 3
- 238000009792 diffusion process Methods 0.000 claims 2
- 230000006978 adaptation Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 claims 1
- 230000008595 infiltration Effects 0.000 claims 1
- 238000001764 infiltration Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 claims 1
- 239000006228 supernatant Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 abstract description 10
- 238000007664 blowing Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000000630 rising effect Effects 0.000 abstract 2
- 230000008021 deposition Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000002595 Solanum tuberosum Nutrition 0.000 description 1
- 244000061456 Solanum tuberosum Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/056—Construction of filtering bands or supporting belts, e.g. devices for centering, mounting or sealing the filtering bands or the supporting belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
- B01D33/72—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding
- B01D33/722—Filters with filtering elements which move during the filtering operation having feed or discharge devices for feeding containing fixed liquid displacement elements or cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/80—Accessories
- B01D33/804—Accessories integrally combined with devices for controlling the filtration
- B01D33/807—Accessories integrally combined with devices for controlling the filtration by level measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/34—Seals or gaskets for filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/48—Overflow systems
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Water Treatment By Sorption (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
Cleaning device having an endless filtering belt guided through a waste water container for filtering of waste water. The filtering belt is guiding over a series turn rollers so that the belt in a certain region runs substantially horizontally with the filtrate faced downwards. With this region there is a rod shaped blowoff device for blowing air towards the filtering belt. Below the blowoff device there is arranged a screw conveyor for removing residues disclodged from the filter mesh. The filtering belt is located adjacent to a transmission belt and is pressed against the same by a clamping rail within the rising sectino of the filtering belt. The device is provided with a control device adapting the filtering belt movement with the waste water supply, thus keeping the waste water surface below a certain level to provide a high degree of dewatering within the upwards rising section of the filtering belt.
Description
The present invention relates to the waste water cleaning device of preamble of claim 1 and blowdown apparatus so that blow air or other gas with interior netted cleaning band, dirt is removed from cleaning band towards being arranged on this cleaning device.
Background technology
Has the deposition that the cleaning device of filter bag for no reason will run into certain pattern that causes the filtered residue that belt stops up, such as the filtered residue in the municipal sewage with from the starch residue in the waste water of potato finishing factory.
United States Patent (USP) 2885080 discloses from the cleaning of top water spray filter bag.But, for adding hot water, the raising cleaning efficiency consumes energy, and the supply of water simultaneously relates to the separation needs of increase, particularly therefore requires a large amount of supplies when being main cleaning medium for filter bag water.
NO patent 165826 discloses a kind of device, and this device is blown so that promote water and particle and guide water to get back to belt from being with from filter bag is following.This device can not provide the relevant operation of cleaning any satisfaction of factory, the i.e. cleaning of municipal wastewater.
WOA87/02595 (Erikson) has introduced from last and has blown forced air or water and collect the water that filters feeder towards filter bag, and it is not effectively that this form is removed filtrate.Blow air by this way and be suitable for most not comprising the removal of the dried filtrate of fat or similar mixtures.
United States Patent (USP) 4921608 usefulness hot-water spraying steam solve this problem, and still, this technical scheme has requirement to equipment and energy, and this is an effective but expensive device owing to this reason simultaneously.
NO patent 178608 discloses a kind of cleaning device, has transmission through for no reason filter bag of waste water container with filtered wastewater, and wherein filter bag is crossed many rollers in such a way and transmitted, and promptly in a certain regional substantial horizontal operation, but filtrate faces down.A shaft-like discharge or blowning installation are arranged so that implement to blow air in this zone with interior towards filter bag, one be parallel to blowning installation and the sparge pipe that is provided with in the downstream to the filter bag injection water.There are some problems in the cooperation of this cleaning device between the module that separates.An example is that blowning installation is had extra high energy requirement to reach the satisfied effect of peeling off.In addition, run into blocking problem owing to enter this device of particle of gas hole.
Goal of the invention
Therefore purpose of the present invention is improved disclosed cleaning device in NO patent 178608 exactly.Another object of the present invention is to increase cleaning capacity and cleaning efficiency.Importantly realize that from screen pack suitable water removes in this, do not consider the wastewater flow rate supplied with and the solid contents of waste water.
For screen pack, controlled filter net by this way importantly promptly can change speed and not produce any tangible wearing and tearing.In other words, an object of the present invention is the control of improved filter screen and handling to guarantee service life long under different speed.
A special purpose of the present invention provides a kind of blowning installation, and this device has the low solid contents from screen pack for for the separative efficiency of removing deposition has improved efficient.Another purpose is to obtain demand and the acquisition effective cleaning in big screen area of high air blowing speed to reduce energy, so that prevent wherein fat deposition.Another object of the present invention provides a kind of less blowning installation that runs into obstruction.
Summary of the invention
This cleaning device can improve by the described trendy feature of claim 1, and other favourable feature accessory rights of the present invention requires 2-9 to embody.
Key character of the present invention is to set up a kind of low water content in the deposition of guiding from the screen pack to the conveying worm.Conveying worm can be implemented effectively the extruding of the solid part with further reduction water, and this reduces the handling problem to residual waste again.
The structure of blowning installation also has contribution to increasing cleaning efficiency.We consider, increase cleaning efficiency by providing a kind of structure that increases the favourable combination of air velocity and the jet width of increase to cause that this is effective for the cleaning filter bag.
At first, trendy structure provides the air blowing that increases speed when leaving blowning installation and blowing over screen pack.Particularly this situation when blow gas pressure is 0.8 crust at least.Because is mechanism and an operation that effectively strides across bigger screen pack of an increase in the cleaning area with the speed result of interior increase.This just provides the cleaning effect that increases and/or has allowed to reduce air capacity or air pressure, therefore causes the energy requirement that reduces.
Another advantage of the present invention is an air slots at contact cleaning belt, and promptly the part of screen pack is that the movement of particles that exists when screen pack moves than broad enters the danger of air slots basically.By being provided with bigger air slots, produce according to the present invention fair speed broad air injection, solids movement and slip problem and will reduce from the deposition of dirt of cleaning belt, this causes operation reliably again and reduces and keep in repair.
Example
The present invention represents in the accompanying drawings, in the accompanying drawing:
Fig. 1 represents the diagrammatic side view of the blowning installation reinstated according to the cleaning device of representing among of the present invention and Fig. 3 and Fig. 4 one;
Fig. 2 represents the cross section by the core of the blowning installation of Fig. 1;
Fig. 3 represents the side view according to cleaning device of the present invention, and the blowning installation of Fig. 1 and Fig. 2 wherein is housed;
The part section end-view of the outlet side of the cleaning device of Fig. 4 presentation graphs 3; And
Fig. 5 represents the cross section by the guiding at screen pack edge or clamping guide rail.
Fig. 1 is illustrated in the shaft-like blowning installation 11 that its each end arranges support 12 and 13 to be pacified with facility Be contained in (not shown) in the equipment, for example below the waste water cleaning band and reach a cleaning band 14 (Fig. 2). Cleaning band 14 can comprise and extends past region of acceptance (for example, be used for accept waste water) The screen pack (not shown), its trailing flank upwards and further extends through below air blowing Device 11, wherein may wrap fatty deposit will be removed.
Blowning installation 11 comprises that air supply pipe 15 is (as arranging the rectangular tube of a series of apertures at its top Son), this air supply pipe is connected (not shown) with the air-source that pressure is arranged. End at described air supply pipe One tubular angle-shaped piece 16 is installed. Jet stem 17 is installed in air supply pipe 15 (for example pipe of polymer) On, such as in detail expression of cross section in Fig. 2, this jet stem has consisted of of the present invention important simultaneously Part.
Fig. 2 illustrates jet stem 17 and how to comprise microscler entrance cavity 18, and compressed air is accepted from contiguous air supply pipe 15 in this chamber.Jet stem 17 for example, is screwed into the abutment surface of the air supply pipe 15 that has a series of apertures 19 towards entrance cavity with screw thread.Entrance cavity presents 8 millimeters width, and simultaneously the bottom pools the angular apertures of 120 degree and forms the inlet arm and extends through jet stem to a series of apertures, and for example, these apertures have 2.5 mm dias, the centre distance of 1-10 mm length and 4 millimeters.
A series of aperture 19 openings enter microscler outlet narrow slit 20, and the width that has at the exit narrow slit approximately is 1: 5 of bore dia and the degree of depth that is approximately 5 times of the narrowest width is arranged.Outlet narrow slit 21 enlarges towards outlet as loudspeaker, promptly, have from the intake section 21A of the weak point with parallel wall, the mid portion 21B of the wall through having the angular aperture that forms about 20 degree is to the process of dispersing with circular exit portion 21C that carries out the transition to outward flange 21D.This structure will be set up a flow regime in the decompression and the change of transition region from outlet narrow slit 21 to cleaning band.
According to the present invention, at first the air velocity at narrow slit outlet 21C place will improve, and the raising of this speed has increased the volume that air flows to cleaning band again.Therefore set up one with regard to the stronger air stream of intensity and size speech, as mentioned above.
For the relation with 17 pairs of air supply pipes 15 of mechanical means stabilized nozzle bar, in inlet narrow slit 18 zones, bar is provided with groove 22, constitutes the elongated side flange 21 and 24 that engages with air supply pipe.
Many parameters of this structure can with respect to shown in the embodiment correct, the distance between these parameters such as nozzle and the cleaning band, the length of outlet narrow slit parallel portion, this length may be for zero, the angle of the opening of the crooked exit portion of outlet narrow slit and opening.
Ratio between compression section 20 and the exit portion 21C was less than about 1: 5, and is best＜about 1: 10, and the width of exit portion is approximately 1: 5 with the length ratio of divergent portion 21B, 21C.
Fig. 3 and 4 expressions cleaning device according to the present invention have the cleaning band for no reason 31 in bottom roller 21 guiding, be tilted to through waste water container 33 to first upper rollers 34 and cross horizontal component 35 to second upper rollers 36, the cleaning band that leads is again got back to below horizontal component 35 roller 37 below first upper roller 34 times.From then on location filtering band 31 extends downwardly into the bottom roller in waste water container 33 bottoms.The sloping portion 38 of filter bag 31 upwards is sealably coupled to (shown in Fig. 5 is detailed) on the guard rail through waste water container, constitutes initiatively filtration zone.The current filter enters waste water container and reaches at end or outlet part 39 that the waste water container top edge is laterally settled, this part be in first upper roller 34 below.
Second upper roller 36 and below roller 37 between the zone, filter bag 31 constitutes the conveyer belt 40 on the surface of counter-rotating, drops in the feeder 41 with the residue of allow collecting.By after second upper roller 36, discrete particles and other loose residue laterally are sent to a suitable gathering-device to filtrate with free-falling by a conveying worm of laterally establishing 42 edges.
In order to remove the filtrate of adhesion, above the filter bag zone and conveying worm 42 above horizontal blowning installation 43 be set and be connected on the air compressor (latter does not represent).This device can be one elongated to be provided with suitablely downwards facing to the outlet nozzle or the outlet narrow slit towards a last side of filter bag 31, promptly is in opposite position with filtrate.
This blowning installation 43 has been shown has removed deposit or dregs, this deposit otherwise will keep being attached on the filter bag and therefore form the block thing of the filter that stops up filter bag the most at last.Suppose that these good effects are owing to air heat causes, when this heating phenomena appears at and blows out through very narrow nozzle or narrow slit.Because the high specific heat of air, this heating can appear at basically under the situation without any the energy supply, because the deposit on screen pack of blowing of air provides efficiently heat to transmit.
Place a blast tube 44 of discharging current to filter bag in the downstream of blowning installation 43.These (operating) water nozzles can be removed residue, these residues thrown off by air-flow but this residue still attached on the filter bag 31.Be to collect the water and the final residual thing of supply, another lateral collection groove 45 as the extension of feeder 41 that laterally points to outlet is set, draw from the water of this groove process and get back to waste water container.
Arrival end at cleaning device has a waste water import part 46, and it has, and covering screen cloth 47 guides the bottom of waste water down to waste water container 33 in one.If contiguous one of screen cloth 47 horizontally set that cover arrive the overflow screen cloth 48 of waste water container so that reclaim the untreated waste water of supply exceed capacity.
A sensor 49 is set in the waste water container mouth, towards the counter-pressure of discharging gas, determines when that therefore the waste water level surpasses certain level such as an air hose monitoring.Perhaps sensor can be a float or based on the level indicator of sound wave.Sensor 49 is connected to the control system (not shown) of drive motors 50 that is used to drive filter bag of the end that is arranged on rear roller 36.This control system guarantees the enough low speed of filter bag, and the level in the waste water container 33 remains on below the certain altitude like this.Thereby the upwards enough length of lift portion 38 of formation filter bag 31 remains on below 95% the sedimental water content on the filter bag, is preferably in below 90%.
A suction box 50 can be set below the top of filter bag 31 and be connected to a discharge fan (not shown) so that the further draining of deposit from the filter bag.
Fig. 5 represents the details of the guiding of filter bag 31, and for example, filter bag can adopt the silk with 0.3 millimeter and the net of the polymeric tapes in 0.3 millimeter hole.This will provide thickness of strip is 0.6 millimeter.Conveyer belt 51 presents guide protrusions 52 below and can be filter bag one driving mechanism is set, and conveyer belt 51 can be made of for example polyurethane, selectively has the silk of reinforcement.Thereby it is in operation on the roller and transmission on the guide rail 53 that has the groove 54 that is used for guide protrusions 52 between the roller.Guide rail 53 can be constituted and can be fixed on the box-shaped joist 56 that is connected to cleaning device on the rail 55 by polyurethane.Guide rail 53 edge within it is provided with the horizontal guide bracket of upwardly extending flange 57 as conveyer belt 51.
In order to keep contacting of filter bag 31 and conveyer belt 51, the grip track 58 of polyurethane is arranged on above the edge, is connected on the box joist 56 with screw 59 and pressure plare 60.Guide rail is provided with a downward projection 61 and constitutes the outside and sluicing groove 62,63 the inside.In order to set up pressure facing to filter bag 31, the pressure lip 64 that is made of soft material (for example teflon rubber) is set, have contact surface 65 facing to filter bag 31 at its edge.Filter bag 31 edge region cover with protection filter bag 31 with cover tape 66 resistance to wears.Lip 64 inserts narrow groove 67 formation and becomes about 70 degree angles with the belt plane.A series of screws 68 are to be fixed in the narrow groove 67 with the fastening at angle lip 64 that makes of narrow groove 67.
This structure of filter bag 31 guiding provides several advantages, and such as the wearing and tearing and the suitable seal effect that reduce, filter bag can closely be set on the roller, like this, even when high speed, also can firmly be directed to.
This structure than may reach with front construction at conveying worm 42 with interior more efficient compression.But, outlet 70 has spring-loaded lid 71 extrusion solids so that implement the dehydration of solid in outlet by being provided with.Outlet 71 the end of conveying worm 42 be porous and the collection overcoat 72 with tapping pipe 73 is set.
Claims (9)
1. cleaning device, has endless band (31), lead through waste water container (33) for filtered wastewater, and cross a series of rollers (32,34,36,37) this band is essentially horizontally moved, filtrate is faced down, wherein have a shaft-like discharge or blowning installation (43) to blow to filter bag, with one blast tube (44) is set so that to the filter bag injection water in the downstream with the parallel while of blowning installation (43), and a conveying worm (42) is set below the blowning installation (43) so that remove relict sediment from screen pack, and filter bag (31) contacts with conveyer belt (51) and be pressed against on the conveyer belt by grip rails (58) with interior in the lift portion (38) of filter bag, it is characterized in that described device further comprises
The control device (4) of the adaptation filter bag motion relevant with the waste water supply is so that keep the waste water surface obtaining stronger dehydration in the upwards lift portion at filter bag (31) below the certain level and therefore, wherein
Constitute blowning installation (43) be set as knife-edge is provided air beam from an enough short distance sensing filter bag so that the opening of infiltration band fully, and
The transverse edge of filter bag is covered by a tight cover tape (66) of being pressed by soft elastic pressure lip (64).
2. according to the cleaning device of claim 1, it is characterized in that pressure lip (64) inserts in the horizontal upwardly extending narrow groove (67) in grip rails (58) edge.
3. according to the cleaning device of claim 1 or 2, it is characterized in that a box (50) being set so that a kind of air outlet slit through filter bag is provided below the top (35) at filter bag.
4. according to each cleaning device in the claim 1 to 3, wherein the deposit from filter bag is introduced in the high-end conveying worm of filter bag (42) downwards, it is characterized in that conveying worm (42), with known state itself, be provided with one and have the outlet (71) that spring loads end cap, like this extrusion solid before outlet.
5. the blowning installation that uses with cleaning device according to claim 1, be used for to cleaning band (15), filter webs particularly, blow air or similar gas, thereby in the equipment of cleaning sewage, remove dirt from the cleaning band supernatant, one of them rhabodoid (17) comprises elongated slot, its width makes the air compression of this elongated slot of flowing through, and a contraction flow region (20) becomes the form in a series of holes especially, it is characterized in that elongated slot has an exit portion (21) of extending from contraction flow region (20) and has the transitional region to the bending of shaft-like front end side (21D) towards cleaning band (15).
6. according to the blowning installation of claim 5, it is characterized in that front end side (21D) is arranged to contact with cleaning band (15).
7. according to the blowning installation of claim 5 or 6, it is characterized in that exit portion (21) has the diffusion part (21B) of the straight line with about 20 degree angular apertures.
8. according to each blowning installation in the claim 5 to 7, it is characterized in that ratio between the cross section of the area of contraction flow region (20) and outlet (21C) is less than about 1: 5, preferably less than 1: 10.
9. according to each blowning installation of claim 5 to 8, the width that it is characterized in that exit region be approximately diffusion part (21B, 21C) length 1/5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/NO2000/000032 WO2001056681A1 (en) | 2000-02-03 | 2000-02-03 | Cleaning device for waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1433336A true CN1433336A (en) | 2003-07-30 |
| CN1177639C CN1177639C (en) | 2004-12-01 |
Family
ID=19904194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB008187800A Expired - Fee Related CN1177639C (en) | 2000-02-03 | 2000-02-03 | Cleaning device for waste water |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US6942786B1 (en) |
| EP (1) | EP1251929B1 (en) |
| CN (1) | CN1177639C (en) |
| AT (1) | ATE393659T1 (en) |
| AU (1) | AU777350B2 (en) |
| CA (1) | CA2398067C (en) |
| DE (1) | DE60038745T2 (en) |
| DK (1) | DK1251929T3 (en) |
| ES (1) | ES2304941T3 (en) |
| MX (1) | MXPA02007450A (en) |
| PT (1) | PT1251929E (en) |
| WO (1) | WO2001056681A1 (en) |
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- 2000-02-03 CA CA2398067A patent/CA2398067C/en not_active Expired - Fee Related
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- 2000-02-03 AT AT00904145T patent/ATE393659T1/en active
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- 2000-02-03 DK DK00904145T patent/DK1251929T3/en active
- 2000-02-03 PT PT00904145T patent/PT1251929E/en unknown
- 2000-02-03 US US10/182,971 patent/US6942786B1/en not_active Expired - Lifetime
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- 2000-02-03 AU AU25815/00A patent/AU777350B2/en not_active Ceased
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| CN117776348A (en) * | 2024-02-27 | 2024-03-29 | 国家深海基地管理中心 | Electrochemical device and method for rapid coagulation sedimentation of deep sea mining plume |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP1251929A1 (en) | 2002-10-30 |
| EP1251929B1 (en) | 2008-04-30 |
| MXPA02007450A (en) | 2004-08-23 |
| WO2001056681A1 (en) | 2001-08-09 |
| CN1177639C (en) | 2004-12-01 |
| CA2398067A1 (en) | 2001-08-09 |
| DE60038745T2 (en) | 2009-07-02 |
| AU777350B2 (en) | 2004-10-14 |
| US6942786B1 (en) | 2005-09-13 |
| PT1251929E (en) | 2008-07-18 |
| DK1251929T3 (en) | 2008-08-04 |
| ES2304941T3 (en) | 2008-11-01 |
| ATE393659T1 (en) | 2008-05-15 |
| DE60038745D1 (en) | 2008-06-12 |
| CA2398067C (en) | 2010-05-25 |
| AU2581500A (en) | 2001-08-14 |
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